if (null != specificationVersion) { sb.append(SPECIFICATION_VERSION); sb.append(brace); sb.append(specificationVersion); sb.append(StringUtils.LINE_SEP); } if (null != specificationVendor) { sb.append(SPECIFICATION_VENDOR); sb.append(brace); sb.append(specificationVendor); sb.append(StringUtils.LINE_SEP); } if (null != implementationTitle) { sb.append(IMPLEMENTATION_TITLE); sb.append(brace); sb.append(implementationTitle); sb.append(StringUtils.LINE_SEP); }
if (null != implementationVendorID) { sb.append(IMPLEMENTATION_VENDOR_ID); sb.append(brace); sb.append(implementationVendorID); sb.append(StringUtils.LINE_SEP); } if (null != implementationVendor) { sb.append(IMPLEMENTATION_VENDOR); sb.append(brace); sb.append(implementationVendor); sb.append(StringUtils.LINE_SEP); } if (null != implementationURL) { sb.append(IMPLEMENTATION_URL); sb.append(brace); sb.append(implementationURL); sb.append(StringUtils.LINE_SEP); }
Clone fragments detected by clone detection tool
File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Specification.java File path: /apache-ant-1.7.0/src/org/apache/tools/ant/taskdefs/optional/extension/Extension.java
Method name: String toString() Method name: String toString()
Number of AST nodes: 15 Number of AST nodes: 15
1
if (null != specificationVersion) {
1
if (null != implementationVendorID) {
2
            sb.append(SPECIFICATION_VERSION);
2
            sb.append(IMPLEMENTATION_VENDOR_ID);
3
            sb.append(brace);
3
            sb.append(brace);
4
            sb.append(specificationVersion);
4
            sb.append(implementationVendorID);
5
            sb.append(StringUtils.LINE_SEP);
5
            sb.append(StringUtils.LINE_SEP);
6
        }
6
        }
7
        if (null != specificationVendor) {
7
        if (null != implementationVendor) {
8
            sb.append(SPECIFICATION_VENDOR);
8
            sb.append(IMPLEMENTATION_VENDOR);
9
            sb.append(brace);
9
            sb.append(brace);
10
            sb.append(specificationVendor);
10
            sb.append(implementationVendor);
11
            sb.append(StringUtils.LINE_SEP);
11
            sb.append(StringUtils.LINE_SEP);
12
        }
12
        }
13
        if (null != implementationTitle) {
13
        if (null != implementationURL) {
14
            sb.append(IMPLEMENTATION_TITLE);
14
            sb.append(IMPLEMENTATION_URL);
15
            sb.append(brace);
15
            sb.append(brace);
16
            sb.append(implementationTitle);
16
            sb.append(implementationURL);
17
            sb.append(StringUtils.LINE_SEP);
17
            sb.append(StringUtils.LINE_SEP);
18
        }
18
        }
Summary
Number of common nesting structure subtrees1
Number of refactorable cases0
Number of non-refactorable cases1
Time elapsed for finding largest common nesting structure subtrees (ms)0.5
Clones locationClones are in different classes
Number of node comparisons153
  1. {Non-refactorable}
    Mapping Summary
    Number of mapped statements15
    Number of unmapped statements in the first code fragment0
    Number of unmapped statements in the second code fragment0
    Time elapsed for statement mapping (ms)22.1
    Clone typeType 2
    Mapped Statements
    ID Statement ID Statement
    6
    if (null != specificationVersion)
    6
    if (null != specificationVersion)
    21
    if (null != implementationVendorID)
    Differences
    Expression1Expression2Difference
    specificationVersionimplementationVendorIDVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimaljava.lang.StringVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable implementationVendorID
    • Make classes org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal and java.lang.String extend a common superclass
    21
    if (null != implementationVendorID)
    7
    sb.append(SPECIFICATION_VERSION);
    7
    sb.append(SPECIFICATION_VERSION);
    22
    sb.append(IMPLEMENTATION_VENDOR_ID);
    Differences
    Expression1Expression2Difference
    SPECIFICATION_VERSIONIMPLEMENTATION_VENDOR_IDVARIABLE_NAME_MISMATCH
    22
    sb.append(IMPLEMENTATION_VENDOR_ID);
    8
    sb.append(brace);
    23
    sb.append(brace);
    9
    sb.append(specificationVersion);
    9
    sb.append(specificationVersion);
    24
    sb.append(implementationVendorID);
    Differences
    Expression1Expression2Difference
    specificationVersionimplementationVendorIDVARIABLE_NAME_MISMATCH
    org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimaljava.lang.StringVARIABLE_TYPE_MISMATCH
    Preondition Violations
    Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable implementationVendorID
    • Make classes org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal and java.lang.String extend a common superclass
    24
    sb.append(implementationVendorID);
    10
    sb.append(StringUtils.LINE_SEP);
    25
    sb.append(StringUtils.LINE_SEP);
    11
    if (null != specificationVendor)
    11
    if (null != specificationVendor)
    26
    if (null != implementationVendor)
    Differences
    Expression1Expression2Difference
    specificationVendorimplementationVendorVARIABLE_NAME_MISMATCH
    26
    if (null != implementationVendor)
    12
    sb.append(SPECIFICATION_VENDOR);
    12
    sb.append(SPECIFICATION_VENDOR);
    27
    sb.append(IMPLEMENTATION_VENDOR);
    Differences
    Expression1Expression2Difference
    SPECIFICATION_VENDORIMPLEMENTATION_VENDORVARIABLE_NAME_MISMATCH
    27
    sb.append(IMPLEMENTATION_VENDOR);
    13
    sb.append(brace);
    28
    sb.append(brace);
    14
    sb.append(specificationVendor);
    14
    sb.append(specificationVendor);
    29
    sb.append(implementationVendor);
    Differences
    Expression1Expression2Difference
    specificationVendorimplementationVendorVARIABLE_NAME_MISMATCH
    29
    sb.append(implementationVendor);
    15
    sb.append(StringUtils.LINE_SEP);
    30
    sb.append(StringUtils.LINE_SEP);
    16
    if (null != implementationTitle)
    16
    if (null != implementationTitle)
    31
    if (null != implementationURL)
    Differences
    Expression1Expression2Difference
    implementationTitleimplementationURLVARIABLE_NAME_MISMATCH
    31
    if (null != implementationURL)
    17
    sb.append(IMPLEMENTATION_TITLE);
    17
    sb.append(IMPLEMENTATION_TITLE);
    32
    sb.append(IMPLEMENTATION_URL);
    Differences
    Expression1Expression2Difference
    IMPLEMENTATION_TITLEIMPLEMENTATION_URLVARIABLE_NAME_MISMATCH
    32
    sb.append(IMPLEMENTATION_URL);
    18
    sb.append(brace);
    33
    sb.append(brace);
    19
    sb.append(implementationTitle);
    19
    sb.append(implementationTitle);
    34
    sb.append(implementationURL);
    Differences
    Expression1Expression2Difference
    implementationTitleimplementationURLVARIABLE_NAME_MISMATCH
    34
    sb.append(implementationURL);
    20
    sb.append(StringUtils.LINE_SEP);
    35
    sb.append(StringUtils.LINE_SEP);
    Precondition Violations (2)
    Row Violation
    1Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable implementationVendorID
    2Type org.apache.tools.ant.taskdefs.optional.extension.DeweyDecimal of variable specificationVersion does not match with type java.lang.String of variable implementationVendorID